(d)superfluid-insulatorquantumcriticalpoint.We arguethatthetransportischaracterizedbyinelasticcollisionsamongther- mallyexcitedcarriersatarateoforderk B T/¯h.Thisimpliesthatthetrans- portatfrequenciesω≪k B T/¯hisinthehydrodynamic,collision-dominated (or‘incoherent’)regime,whileω≫k B T/...
Col l isionsndeview of materialecture13leasetakeanevaluationformre-reading: KJF§9.5 1 COLLISIONSJF§95, 107 2Co n se rvatio n of m o m e ntu mecall..